barlow



Aug. 28, 192s; 1,682,208

' H. BARLow MARINE ELEVATOR 2 Sheets-Sheet l -Filed Jan. 24:,` l1927 N El M ...ELJ

" TTORNEY Aug. 28, 1928. 1,682,208 H. BARLOW MARINE ELEVATOR Filed Jan. 24, 19217 2 sims-shee'cv 2 INVENTOR mentA over the dock deck. Such conditions.V require special construction of the throwout mechanism so that the superstructure inci-V dent thereto is eliminated or reduced toan yunobjectionalole degree.

A further operating condition to be consideredin providing the Athrowout mechanism is the matter of different running speeds of the elevator platform which obtain in different installations; i.'e., in one installation the distance of travel vof the elevator may be ten feet while in vother installations the tidal variation (particularly river construction) may require an installation of thirty or more feet. In the latter case the ruiming speed ofthe elevator platform is about twice that of the former. However, the throwout mechanism is preferably (among other reasons that ofv standardization) identical in construction in both cases and must be such as to be equally operable in both instances.A l Y A'primaryY object of my invention is to provide an elevator platform with associated throwout mechanism which will lsatisfy each and all these conditions and requirements. l

The above general objects of my invention, together with others inherent in the same, are obtainedby the device illustrated in the following drawings, the saine beingpreferred exemplary forms of embodiment of myinvention throughout which drawings like reference numerals indicate like parts.

Figure 1 is a view in side elevation of a marine'elevator embodying my invention.

Fig. 2 is an ,enlarged View in side elevation of a throwout member adjustable to different levels.

Fig. 3 is a planview of said adjustable throwout member and a portion of the elevator platform.

A marine elevator platform 4is operatively suspended vby hoisting cables 5 dis-` posed 'at each of the four corners of the patform. The said cables are secured to `drum '6 and independent cable 7 is'also secured to drum 6, and to this latter cable elevator counterweighty 8'is secured. Motor means 9 actuates drum 6. s Y

` A roller 10`is operatively mounted on the end of shaft 11 which shaft is carried on the under side of the patform 4, the said rollers being disposed on each side of the rear end ofthe platform. i

The said rollers 10 engage throwout guide members which are slidably mounted on each side of the'elevator well as follows: An angle guide. or trackway, k12 is secured byrangle clips 13 to dock beams 14 carried by the dock piling 15. I beam guides or trackwaysvl are secured by the angle clips 1T to dock beams14. Between and against. these two trackways'or guides 12 and 16 which are disposed on each side of the elevator well throwsecured ,by angle clip 21 to the bottom angle member 18. To angle irons 18 and 20 an 'angle iron 22 preferably curved is riveted having the flange member at the upper 'end .extend across the rear side of the I beam. To this upper end flange portion of angle ironV 22 may be secured block 23 which is slidably disposed against the I beam 16. VOn

the opposite side a block 24 may be secured to the angle iron 20, and this block in turn is slidably disposed against I beam 16. Similar-blocks (not shown) are also disposed at the lower end of angle iron 20. Theflange member 25 of angle iron 22 provides a curved pathway to be engaged by the roller 10 mounted on the elevator platform. The angle clip bumper 26 having a rubber block 2"( is secured to the upper vend of angle iron 20. This bumper provides for the throwout member to be engaged by` the edge portion of the platform and carried upwardly with it so that the throwout member may travel with the elevator platform for a part ofits flight. Y

A cable 28secured to the dock deck on drum 29 extends over sheave 30 lfor each throwout means and thence through an opening in a clip securedto the' back side of angle iron 18, and is made fast to a bumperblock 32 having the spring 33. This provides a guide member. A fixed but hingedly mounted apron 34 may be mounted on the end of the` elevator platform. j s 1 The modeofoperation of the marine elcvator Vembodying my invention is as followsi Assumingthat the vessel is moored against theldock and that the side" port'opening is opposite the position shown by the platform in dotted line, the cable 28 is payed out from drum 29 until said bumper block is on a level with the deck of the vessel, i. e. in the position indicated in Fig. 1. The drum 29 which may be of the worm gear type is self-locking. The platform 4 which carries with it the throwout members on each side-thereof by means of the angle clip bumpersQG is lowered. In its descent, the throwout members slide down their fixed guide or track ways 12 and 16 and likewisev eachV slides .down the cable 28 until the bumper block 32 is contacted.

V Thereupon, the descent of the throwout memsupport to limit the descent of the throwout bers is arrested and Ais maintained atthe level of the bumper. Then as the platform 4 descends roller 10 directly engages the curved trackway 25 and the platform is manifestly forced endwise, i. e. in a direction at right angles to the vertical, towards the vessel to an extent necessary to permit the spanning of the gap between the deck of the vessel and the dock. Then, when the freight loaded trucks are loaded upon and occupy all available room on the elevator, the same may be elevated and as it rises it is manifest that the platform edge will swing inwardly as its rollers 1() run up the trackway 25, and engage the bumper 26 and carry the throwout means upward with the platform. The elevator is hoisted until it reaches the level ofthe deck of the dock or to such other height as may be desired, such as to the heightof a truck which may be backed up to the elevator well so that the freight may be run directly off the platform on to the floor of the truck, or the elevator' may be elevated to any other level, as another story, at which it is desired to remove the freight.

When the freight is removed, the elevator platform is again lowered to the level of the deck of the vessel. It will be noted that since the throwout means member is carried by the platform 4 it does not cause a sudden jar or Vjolt when the throwout means contacts with the bumper block 82, and the roller 10 engages the t-rackway 25 since direct contact is maintained between the two at all times. The throwout motion starts without any objectionable jarring or bumping. rlhe hoisting cables 5 at theforward or water edge of the platform are preferably backwardly inclined in order to maintain the roller 1() of the elevator platform against the I beam guide 16 and the track guide 25 of the throwout member.

The elimination of sudden jolts and jars is fundamentally important for the reasons hereinbefore stated.

The construction of this throwout mean and its mounting and method of 4engaging the elevator platform 4 provides for overcoming any swaying or displacement of the dock by reason of the vessel being moored against the same. Manifestly, in place of roller means 10 a sliding shoe or other contacting means could be substituted for said roller. l

Y Obviously changes may be made in the forms, dimensions and arrangement `of the parts 'of my invention, without departing from the principle thereof, the above setting forth only a preferred form of embodiment.

I claim: l 1. A marine elevator embodying an elevator platform suspended at its four corners having a roller means operatively mounted on eachV sidethereof; and adjustable throwoiity guide members operatively mounted with respect to said rollers whereby said platform may be moved in a direction at right angles to the vertical at any desired point intermediate its flight.

2. A marine elevator embodying an elevator platform suspended at its four corners having a roller means operatively mounted at each side thereof; adjustable throwout guide members operatively mounted with respect to said rollers whereby said platform may be moved in a direction at right angles to the vertical at any desired point intermediate its flight; and fixed guides for each of said guide members.

3. A marine elevator embodying an elevator platform suspended at its four corners having a roller means operatively mounted at each side thereof; throwout guide members operatively mounted with respect to said rollers whereby said platform may be moved in a direction at right angles to the vertical at any desired point intern'iediate its flight; fixed yguides for each of said guide members; and

an adjustable supporting means upon which each of said guide members is slidably mounted embodying ar drum, a cable suspended from said drum, and a bumper block secured to one end of said cable.

4. A marine elevator embodying an elevator platform suspended at its four corners having a roller mean-s operatively mounted on each side thereof; throwout guide members operatively mounted with respect to said rollers whereby said platform may be moved in a direction at right angles to the vertical at any desired point intermediate its flight, each of said guide members having a platform engaging means whereby said guide members vmay be carried by said platform for a part of its flight whereby the rollers are maintained in contact with said guide members; fixed guides for each of said'guide members; and an adjustable supporting means upon which each of said guide members is slidably mounted embodying a. drum, a cable suspended from said drum, and a bumper block secured to one end of said cable;

5. A marine elevator embodying an elevator platform suspendedat its four corners having a roller operatively mounted on each side thereof; adjustable throwout guide members engage'able by said rollers whereby 'said platform may be moved in a direction. at right angles from thev vertical at any desired point intermediate its flight; and each of said guide members having a platform engaging means whereby said guide members may be carried lby said platform for a part of its flight..

In witness whereof I hereunto subscribe my name this 5th day of January, A. D'. 1927.

HARRY BARLOV. 

